Amy Carey-Jones, sister of Miriam Carey, speaks to the media outside the home of her sister Valarie in Brooklyn, New York, Friday, Oct. 4, 2013.
Amy Carey-Jones said Friday that Miriam Carey "seemed OK" when they spoke more than a week ago.
Another sister said police should not have used deadly force. That sister, Valarie Carey, is a former New York City police officer.
Attempts to reach police in Washington for comment early Saturday were unsuccessful. Officials previously said circumstances leading to the shooting remain under investigation.
The sisters spoke late Friday outside Valarie Carey's Brooklyn home. They say Miriam Carey had been suffering from postpartum depression since the birth of her 1-year-old daughter.
Police say Miriam Carey's actions Thursday weren't an accident.